What is the normal measurement range for the adult liver on ultrasound?

The adult liver's normal measurement range, specifically for the right lobe, is generally accepted to be between 13 and 15 cm, although it can vary based on factors such as body habitus. This range accounts for normal anatomical variations among individuals; for instance, taller or larger individuals may present with slightly larger liver sizes, while others may be on the smaller end of the spectrum. The significance of correctly identifying the normal liver size is crucial in the assessment of potential pathologies, as deviations from this range can suggest conditions like hepatomegaly or cirrhosis, prompting further investigation.

The other choices may either overestimate or misrepresent the typical measurements. While the right lobe is often measured in clinical practice, alternatives suggest ranges that don't align with the widely accepted standards within medical literature for a normal liver size, emphasizing the critical nature of understanding standard anatomical dimensions.